New results from a substudy of the Women's Health Initiative (WHI) Estrogen-Alone Trial show that younger postmenopausal women who take estrogen-alone hormone therapy have significantly less buildup of calcium plaque in their arteries compared to their peers who did not take hormone therapy. Coronary artery calcium is considered a marker for future risk of coronary artery disease.

Multiple sclerosis (MS) is a degenerative disease affecting the central nervous system of 400,000 Americans with 200 more diagnosed each week. The disease causes reduced nerve function and consequently a variety of symptoms. The most commonly reported symptoms include muscle weakness, spasticity, excess fatigue and depression, which often results in a vicious cycle of reduced mobility and decreased physical activity.